Powertrain, generic · Computer and auxiliary outputs

P061B Internal Control Module Torque Calculation Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Electronic throttle systems run a second, independent calculation on the same processor (level 2, at Ford 'IPC – independent plausibility check') that recomputes driver demand, permitted and actual torque and their inputs, and compares them with the main software. P061B means the torque calculation itself is inconsistent: main software and monitoring compute the torque differently. On Ford petrol engines it sets within 1 s with the check engine and wrench lamps and blocks the catalyst monitor. On Ford's 2023 diesel torque equals injected fuel, so P061B checks the injection control instead – energising times outside 10–850 ms, more than 127.2 µs between programmed and actual, or more than 5 mg difference in quantity correction (5 s). Software updates fixed it on Chrysler's 3.0 L EcoDiesel and the Ram 6.7 L Cummins; on the Ford Five Hundred it came with idle codes and a dirty throttle body.

Likely causes

Engine module software or calibration fault (update available)
Dirty throttle or air path, idle adaptation at its limit (petrol)
Voltage dips, poor ground or supply at the module
Injector quantity deviation pushing the zero-fuel calibration out of range (diesel)
Internal defect of the engine module

Symptoms

  • Check engine light and wrench lamp
  • Reduced power or limp mode
  • Fluctuating idle (Ford petrol with dirty throttle)
  • Sometimes only the lamp

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,200
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

engine control modulecontrol module power supply

Related codes

P061AP062BP0606P0505P0506P060C

References: law.cornell.edu, newtonnet.co.uk, fordservicecontent.com, static.nhtsa.gov.